Calculator: calculate the annual simple flat interest rate to negociate in order to earn a certain simple flat rate interest on the principal (money starting amount) by duration and additional transaction fees

Calculator: annual simple interest rate to negociate to earn a certain interest

Annual simple flat interest rate = (Simple flat rate interest × Number of days in a year) ÷ (Principal × Duration in days)

Latest calculated annual simple flat interest rates

Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 120 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Mar 25, 2017, to date: Dec 25, 2017, namely for a period of 275 days (9 Months) if the commission fee (withdrawal or payment) is 0%.Feb 19 05:10 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 200 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Aug 10, 2017, to date: Sep 10, 2017, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Feb 19 04:57 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 7,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Mar 25, 2017, to date: Apr 25, 2027, namely for a period of 3,683 days (121 Months) if the commission fee (withdrawal or payment) is 0%.Feb 19 03:22 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 200 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Feb 13, 2018, to date: Mar 13, 2018, namely for a period of 28 days if the commission fee (withdrawal or payment) is 0%.Feb 19 00:32 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 8,500 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 200 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Jul 03, 2016, to date: Aug 03, 2017, namely for a period of 396 days (13 Months) if the commission fee (withdrawal or payment) is 1%.Feb 18 21:21 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 184,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 3.91 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Sep 27, 2017, to date: Sep 27, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.Feb 18 20:55 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 80,261 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 2,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Aug 01, 2016, to date: Dec 31, 2017, namely for a period of 517 days (16 Months and 30 Days) if the commission fee (withdrawal or payment) is 0.3%.Feb 18 20:55 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 6,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 1,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Feb 10, 2018, to date: Mar 10, 2020, namely for a period of 759 days (25 Months) if the commission fee (withdrawal or payment) is 0%.Feb 18 20:28 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 950 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 230 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Feb 12, 2018, to date: Mar 12, 2018, namely for a period of 28 days if the commission fee (withdrawal or payment) is 0%.Feb 18 18:03 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 400 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 28 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Aug 28, 2017, to date: Sep 28, 2017, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Feb 18 16:15 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 500 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 3,727 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: May 21, 2017, to date: Aug 27, 2017, namely for a period of 98 days (3 Months and 6 Days) if the commission fee (withdrawal or payment) is 0%.Feb 18 15:48 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,720 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 35 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Mar 30, 2017, to date: Jun 30, 2017, namely for a period of 92 days (3 Months) if the commission fee (withdrawal or payment) is 0.1%.Feb 18 13:36 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 10,000,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 0 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Feb 10, 2018, to date: May 10, 2018, namely for a period of 89 days (3 Months) if the commission fee (withdrawal or payment) is 0%.Feb 18 13:28 UTC (GMT)
All annual simple flat interest rates calculated by users


How to calculate / negociate the simple flat interest rate of a principal - initial starting amount of money lent, deposited or borrowed, in order to collect or pay a certain simple flat rate interest by the duration and any additional transaction fees (withdrawal, payment in advance, etc.).

Annual simple flat rate interest formula:

  • I = S × p% × n

  • I = n years simple interest charged
  • S = initial amount (principal)
  • p% = annual simple flat interest rate (percentage of the principal, charged as interest)
  • n = number of years of the lending or borrowing the money
  • Formula of the simple flat interest rate applied on the principal - initial starting amount of money lent, deposited or borrowed, in order to earn a simple flat annual rate:

  • p% = I ÷ (S × n)

Examples of how to calculate the simple flat interest rate on the principal amount in order to earn a certain simple flat rate interest:

  • 1) What is the simple flat interest rate of the principal S = 20,000 units that has to be lent, deposited or borrowed, for a period of n = 5 years, if the simple flat rate interest collected or paid D = 3,500 units?
    Answer:
    p% = I ÷ (S × n) = 3,500 ÷ (20,000 × 5) = 3,500 ÷ 100,000 = 3.5 ÷ 100 = 3.5%
  • 2) What is the simple flat interest rate of a principal S = 5,000 units, that has to be lent, deposited or borrowed, for a period of n = 3 years, if the simple flat rate interest collected or paid D = 300 units?
    Answer:
    p% = I ÷ (S × n) = 300 ÷ (5,000 × 3) = 300 ÷ 15,000 = 3 ÷ 150 = 1 ÷ 50 = 2 ÷ 100 = 2%

Annual simple flat interest rate formula calculated for a period of n years:

  • Simple flat interest rate, p% = I ÷ (S × n)
  • Interest, I = S × p% × n
  • Principal, S = I ÷ (p% × n)
  • Number of years of the period of the deposit, lending or borrowing, n = I ÷ (S × p%)

Formula of the simple flat interest rate of the principal for an annual simple flat rate interest calculated for a period of m months:

  • Simple flat interest rate, p% = (12 × I) ÷ (S × m)
  • Interest, I = (S × p% × m) ÷ 12
  • Principal, S = (12 × I) ÷ (p% × m)
  • Number of months of the period, m = (12 × I) ÷ (S × p%)

Formula of the simple flat interest rate of a principal for an annual simple flat rate interest calculated for a period of d days:

  • Simple flat interest rate, p% = (365 × I) ÷ (S × d)
  • Interest, I = (S × p% × d) ÷ 365
  • Principal, S = (365 × I) ÷ (p% × d)
  • Number of days of the period, d = (365 × I) ÷ (S × p%)

More examples of how the simple flat interest rate of a principal for a simple flat rate interest formula works:

  • 1) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 6.67 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 6.67) ÷ (400 × 5) = (12 × 6.67) ÷ 2,000 = 80 ÷ 2,000 = 4%
  • 2) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 7.5 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 7.5) ÷ (400 × 5) = 90 ÷ 2,000 = 4.5%.